Occidental Petroleum OXY

EnergyMarket cap $57B3 connections

Occidental Petroleum produces oil in the Permian Basin, Oman, and Algeria, plus operates a large chemical business (OxyChem) and the world's first direct air capture facility (Stratos). Warren Buffett owns 28%+ of OXY stock. Its CrownRock acquisition made it the third-largest Permian producer. OXY's carbon capture ambitions - capturing CO2 directly from air - are the most audacious climate technology bet in energy.

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Partners 1

Strategic partnerships, joint products and alliances

AmazonConsumer & Retail · $2.7TCarbon credits to offset AWS

Owned by 1

Companies with a stake in Occidental Petroleum

Berkshire HathawayFinance · $900B28%+ stake, ongoing accumulationsince 2019

Stakes owned 1

Companies Occidental Petroleum owns or has invested in

Western MidstreamEnergy · $18BOccidental Petroleum owns 50%+ of Western Midstreamsince 2019

Other Energy companies

Saudi Aramco ExxonMobil Chevron Shell plc NextEra Energy ConocoPhillips TotalEnergies Marathon Petroleum Valero Energy Phillips 66

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Relationships are compiled by VexMap from company filings, announcements and reporting, and last reviewed September 2026. Spotted something wrong? Tell us. Not investment advice.